If the Republican Party is supposed to be the party of family values and Christianity, then why did they elect someone like Trump?

Answers

It's called a last act of desperation. America cannot really be called a Christian nation anymore but is a pluralistic society based on a capitalist secular government. Electing Trump, who by any stretch of the imagination does NOT promote Christian values, will not make America a Christian nation again. Society has embraced a worldly humanistic way of life and by trying to mandate Christian values through law, this only causes hatred towards Christians and the cause they stand for.

Power. Power. Power.
He who has power CONTROLS the LEGISLATION drawn up TO GOVERN the behavior of others.
The constitution of the court will be determined by the republicans, and the path set for the next generation.

http://www.informationclearinghouse.info/49729.htm "The vacancy will allow President Donald Trump to make the U.S. Supreme court a solidly conservative body for years, if not generations, to come — a towering legacy of his time in office."

So why wouldn't they want TO exercise power?

Care about family values? Seriously? They want to ban abortion, whilst ignore OUTRIGHT the homeless, destitute kids on the streets.
What matters more, a blob of cells incapable of surviving outside of the womb, or providing care for ACTUAL LIVING BREATHING SUSTAINABLE UNDERAGE CHILDREN?

The evangelicals turn a blind eye to how those preaching family values are embroiled in RAMPANT INFIDELITY. So much for their love of heterosexual family model.

Represent Christianity? Since Bush Jr 2003, U.S. has NOT turned away from endless wars. A cynic would question how fighting CHRISTIAN RUSSIA as an enemy is justified?
The evangelicals didn't want the refugees given shelter in U.S. as a consequence of their endless middle eastern meddling.